C266 Lightning Fire
"What? A black puzzle?" Chen Xing pretended not to know anything.
"Yes, it's black. It's a bit like metal, and there are drawings on it," the middle-aged villager said.
"Oh, wait a minute..." Chen Xing pretended to flip through his backpack. After a while, he replied, "No, I can't find what you are looking for."
"It's okay. If you find something similar